WASHINGTON — Nearly 80 percent of senior executives at the Department of Veterans Affairs got performance bonuses last year despite widespread treatment delays and preventable deaths at VA hospitals and clinics, a top official said Friday.

More than 350 VA executives were paid a total of $2.7 million in bonuses last year, said Gina Farrisee, assistant VA secretary for human resources and administration. That amount is down from about $3.4 million in bonuses paid in 2012, Farrisee said.

The totals do not include tens of millions of dollars in bonuses awarded to doctors, dentists and other medical providers throughout the VA's nearly 900 hospitals and clinics.

Workers at the Phoenix VA Health Care System — where officials have confirmed dozens of patients died while awaiting treatment — received about $3.9 million in bonuses last year, newly released records show. The merit-based bonuses were doled out to about 650 employees, including doctors, nurses, administrators, secretaries and cleaning staff.

Farrisee defended the bonus system, telling the House Veterans Affairs Committee that the VA needs to pay bonuses to keep executives who are paid up to $181,000 per year.

"We are competing in tough labor markets for skilled personnel," Farrisee said Friday. "To remain competitive in recruiting and retaining the best personnel to serve our veterans, we must rely on tools such as incentives and awards that recognize superior performance."

Farrisee's testimony drew sharp rebukes by lawmakers from both parties.